Hytera PD412i, Owner'S Manual

Page: 15 / 21

10
Features and Operations
Operation
Service Operation
To initiate private calls or group
calls on the digital channel. Press the One Touch Call key and
then hold down the PTT key.
To send text messages
Press the programmed
One Touch
Call key.
Squelch Level Adjustment
Description
Squelch Level Adjustment allows you to adjust the squelch threshold
required for the radio to be unmuted.
Generally, the higher squelch level requires stronger signal. If the squelch
level is set to
“
Open
”
(squelch level: 0), the speaker will keep unmuted
irrespective of the decoding conditions.
Operation
Press the programmed Adjust Squelch Level key to switch the level
among
“
Tight
”
,
”
Normal
”
and
”
Open
”
. When switching from
“
Tight
“
to
“
Open
“
, a low-pitched tone sounds followed by the
background noise; from
“
Open
“
to
“
Normal
“
, a high-pitched tone
sounds with the background noise fading; from
“
Normal
“
to
“
Tight
“
,
a high-pitched tone sounds.
Monitor
Description
Monitor allows you to set whether the radio can receive the weak
signals in order to monitor the radio.
Operation
Press the programmed Monitor key to enable the feature (a high-
pitched tone sounds); press this key again to disable the feature (a low-
pitched tone sounds).
CTCSS/ CDCSS
Description
CTCSS/CDCSS allows the radio to add signaling with a frequency
lower than that of the audio to the carrier. The speaker can be unmuted
only when the CTCSS/CDCSS received by the receiving party is
matched with that transmitted by the transmitting party.
Operation
Enable or disable this feature via CPS by your dealer.
Squelch Off
Description
Squelch Off allows the speaker of the radio to keep unmuted no matter
whether carrier is present.